// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "ui/wm/core/default_screen_position_client.h"

#include "ui/aura/window_tree_host.h"
#include "ui/gfx/display.h"
#include "ui/gfx/geometry/point_conversions.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/screen.h"

namespace wm {

DefaultScreenPositionClient::DefaultScreenPositionClient()
{
}

DefaultScreenPositionClient::~DefaultScreenPositionClient()
{
}

gfx::Point DefaultScreenPositionClient::GetOriginInScreen(
    const aura::Window* root_window)
{
    aura::Window* window = const_cast<aura::Window*>(root_window);
    gfx::Screen* screen = gfx::Screen::GetScreen();
    gfx::Rect screen_bounds = root_window->GetHost()->GetBounds();
    gfx::Rect dip_bounds = screen->ScreenToDIPRectInWindow(window, screen_bounds);
    return dip_bounds.origin();
}

void DefaultScreenPositionClient::ConvertPointToScreen(
    const aura::Window* window,
    gfx::Point* point)
{
    const aura::Window* root_window = window->GetRootWindow();
    aura::Window::ConvertPointToTarget(window, root_window, point);
    gfx::Point origin = GetOriginInScreen(root_window);
    point->Offset(origin.x(), origin.y());
}

void DefaultScreenPositionClient::ConvertPointFromScreen(
    const aura::Window* window,
    gfx::Point* point)
{
    const aura::Window* root_window = window->GetRootWindow();
    gfx::Point origin = GetOriginInScreen(root_window);
    point->Offset(-origin.x(), -origin.y());
    aura::Window::ConvertPointToTarget(root_window, window, point);
}

void DefaultScreenPositionClient::ConvertHostPointToScreen(aura::Window* window,
    gfx::Point* point)
{
    aura::Window* root_window = window->GetRootWindow();
    ConvertPointToScreen(root_window, point);
}

void DefaultScreenPositionClient::SetBounds(aura::Window* window,
    const gfx::Rect& bounds,
    const gfx::Display& display)
{
    window->SetBounds(bounds);
}

} // namespace wm
